Zoltajt de jnbmeth



Feb. 9, 1932.

z. DE NMx-:TH 1,844,213

SAFETY DEVICE FOR PORTABLE OIL BURNERS Filed Aug. 27, 1930 I C Z BY del/NVENTOR @Lr/mg ATTORNEYS.

Patented Feb. 9, 1932 orcs zoLTAN DE NMETH, or NEW Yon-K, N. Y.

SAFETY DEVICE FOR PORTABLEOIL BURNERS Application led August 27, 1930. Serial No. 478,480.

This invention relates to improvements in portable heaters, lamps and like apparatus m which kerosene or other fluid fuels are consumed in producing a flame and in which al tubular wick is used, this application being for similar subject matter as that disclosed in my abandoned application filed Oct. 10th, 1924, Serial Number 742,803.

Such devices are easily subject to vacciden-k tal upsetting, creating a dangerous fire haz-V struction and arrangement of parts herein-VK after described and illustrated in the accom- H panying drawings, forming a material part of this disclosure, and in Which:-

Figure 1 is a longitudinal'sectional View of a burner including one form of the invention in normal operative position.

Figure 2 is a similar but partial view of a like burner showing the device in its raised position.

Figure 3 is a transverse sectional view taken on line 3-3 of Figure 1.

In the drawings the numeral 10 designates in general the upper element of a container for the liquid fuel for Which it serves as a cover.

As shown, the cover element 10 may be dome-shaped and provided with an annularl raised offset 11, having an inreaching flange 12, which may be continued upward in the form of a cylindrical wick barrel 13.

Supported in the container is a tubular sleeve 14, its upper edge extending coincidently with the top of the wick barrel 13, while therebetween is a wick 15, this tubular wick being moved up and down by means' ordinarily employed.

The burner element 16, shown in broken lines, carries at its lower edge a level ring 17, having at its inner edge a downreaching flange 18, and at its outer edge is a spreader' 19 turned at its upperyedge downwardly to constitute a' skirt v2O, these llame spreader 55 elements are normally held in position by a down reaching annulus 21, secured in any preferred manner .by the inner tube 14, the wick 15 being adapted, when in its highest raised position, to contact with the under side of the ring 17, thus the upper edge of the tubular wick is exposed when in a raised position, and due to the capillary attraction of the wick the fuel is raised so that upon the application of a flame, the upper end of the wick will become ignited and the flame spread outwardly, due to the elements 19 and 20.

Mounted on the flange 12 is an annular flange 23, having at its outer edge a raised cylindrical casing 24, offset inwardly as at 25, and then having an upwardly projecting inember 26 terminating in an annularbevel 2 A pair of opposed pivots 30 are mounted in 75 the element 24, near its upper offset portion, and pivoted thereon are levers 31 having weights 32 at their outer extremities, these levers extending through openings 33 in the vcasing 24, while their opposite inner ends 34 are adapted to normally engagein the manner of detente with a catch ring 35 formed with or secured to the tube 13, f

Positioned on the flange `23, on the opposite sides of the device, are the central portions 36 of bent round springs 37 ,terminating in eyes 38, Whichare secured tothe inner surface of the casing-24, these'springs being so positioned as to raise the extinguisher and cause its bevelled surface 27 to make intimate contact-withrthe inner surface of the spreader skirt20, thereby closing off oxygen necessary to combustion of the wick 15.

Normally theweights V32 act to maintain the extinguisher in its lowered position, but allowing it tofreely operate when the weights are movedbygravity outwardly to'free the catches 34 `from the ring 35, and in order to` prevent the device from mischievous handling an arcuate guard 39 is provided to seat on the collar 19 at its offset portion 11.

In the modification indicated in Figure 2 the wick tube elements 13 and 14', together with the wick 15', remain as previously described, but the catch ring 35 is removed from the wick tube 13. A corresponding catch ring 35 is formed on a sleeve 40, having an outturned flange 41 resting on the cover plate flange 12'.

Engageable with the hook Vring 35 are hooks 34' formed on levers 31', actuated by the weights 32', the lever being pivoted at 30 on pins passing through portion of a cylindrical extinguisher 42, which has a li nge 43 normally engaged on the n corresponding flange 41, while at the upper edge of the extinguisher is an upright element 44 having a bevelled annular surface 45, which, when raised, is adapted to make close contact with the inner surface of the iiame spreader20.

In this type there are mounted on the flange 41- spring bases 36', having raised elements 37 terminating in eyes 38', which engage the extinguisher-sleeve 42 normally exerting suiiicient pressure to maintain lat-ching contact between the elements 34' and 35', thereby retaining the extinguisher in its normal lowered position, but which is raised by the effect of the springs when the levers 31', are moved out of their normal position, as by tilting of the burner, in a manner which will be clearly understood.

IVhen the burner is in use the extinguisher tube 42 is pushed down as far as it will go, and held by its own weiglfit, combined with the weight of the levers checking the upward thrust v'of the springs 36', in which position the wick 15' will burn freely.

However, upon tilting the apparatus, Jthe weights become displaced from the catch ring allowing the levers carrying them to move under the action of the springs, to operate the extinguisher tube, raising it so as to cover the entire outer surface of the Wick barrel and contact with the liame spreader, thus completely closing o the air necessary to support combustion of the wick and instantly extinguish the flame.

While certain preferred embodiments of this device have been shown and described, it will be understood that changes in the form, arrangements, proportions, sizes and details thereof may be made without departing from the scope of the invention as defined in the appended claims.

Having thus described the invention, what is claimed Vas new and desired to secure by Letters Patent, is Y 1. A portable oil burner comprising an upright wick-barrel, a iiame spreader exceeding the diameter of said barrel disposed spacedly thereabove, a )flame extinguisherV having an expanded lower portion .constituting a casing slidable on said barrel to con- Vnient thereof by contact with said catch ring,

said levers becoming displaced upon tilting the burner from an upright position and re silient means to raise said casing upon release of said levers from said catch ring.

2. A safety device for portable oil burners comprising in combination with a burner having an annular wick barrel composed of spaced tubes, avvick operable therebetween and a flame spreader, of a sleeve adjustably carried 'by said wick barrel, a bevelled flange on said sleeve extending outwardly, a hollow casing slidable on the outer of said barrel tubes, opposed Yweight carryinglevers pivoted on said casing, said levers having inreachingdetents, a circumjacent catch ring on said sleeve to engage said-detents, springs to exert an upward pressure on said casing, a bevelled top on said casing to make close contact with said flame spreader upon tilting of the burner thereby causing saidl weighted levers to release the detents from said catch ring and an annular guard spaced circumjacent said weights.

3. A safety-device for portable liquid fuel burners, comprising a tubular sleeve encircling the burner wiclr, a flame spreader having a conical skirt,-a hollow annular casing slidable on said sleeve, a, plurality of levers pivoted in said casing to extend radially outward, said levers havinginreaching detents, resilient means for urgingsaid casing upwardly, saidv casing having a part to close against said skirt, means normally engaging Vthe detents of said levers whereby the casing is heldretracted while the burner'is upright, and a concave guard spaced circumj acent said casing and levers. I l

In testimony whereof I affix my signature.

zoLTN DE NMETH. 

